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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro TELKOMNIKA (Telecommunication Computing Electronics and Control) JURNAL ELEKTRO JOIN (Jurnal Online Informatika) CogITo Smart Journal Jurnal Sistem Cerdas Jurnal Pengabdian Masyarakat Charitas Cylinder : Jurnal Ilmiah Teknik Mesin
Veronica Windha Mahyastuty
Program Studi Teknik Elektro, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya Jakarta
Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Low Energy Adaptive Clustering Hierarchy Routing Protocol for Wireless Sensor Network Veronica Windha Mahyastuty; A. Adya Pramudita
TELKOMNIKA (Telecommunication Computing Electronics and Control) Vol 12, No 4: December 2014
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/telkomnika.v12i4.660

Abstract

Wireless Sensor Network (WSN) is a network composed of many sensor nodes distributed in a region, and is used to monitor and gather information about certain phenomena in the physical environment. A sensor node typically has limited power, which must be taken into consideration in designing the routing protocol of a WSN. One of the routing protocols that can increase the energy efficiency of WSN is Low Energy Adaptive Clustering Hierarchy (LEACH). In this research, the performance of LEACH, namely energy consumption and lifetime is evaluated using NS-2. Simulation results show that the number of nodes and clusters affect the optimum number of clusters and the device lifetime, which in turn will affect the energy consumption level as well as the energy efficiency.
Protokol Routing Power Efficient Gathering in Sensor Information Systems pada Wireless Sensor Network Kevin Anggana; Veronica Windha Mahyastuty
Jurnal Elektro Vol 8 No 1 (2015): Jurnal Elektro Unika Atma Jaya
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penggunaan wireless sensor network (WSN) saat ini telah dipertimbangkan untuk memenuhi kebutuhan komunikasi antara lain di bidang industri, keamanan, medis, serta pemantauan cuaca dan lingkungan. WSN merupakan jaringan yang terdiri atas banyak node sensor yang terdistribusi pada suatu wilayah, dan digunakan untuk memantau dan mengumpulkan informasi mengenai fenomena tertentu pada lingkungan fisik.  Sensor-sensor kemudian meneruskan informasi tersebut ke sebuah base station, agar informasi dapat diakses oleh pengguna. Kendala pada penggunaan WSN adalah pada keterbatasan energi yang dimiliki setiap node sensor. Dengan demikian inefisiensi energi pada seluruh lapisan protokol node sensor perlu ditekan.  Oleh karena itu, dibutuhkan sebuah protokol routing pada teknologi WSN yang dapat mengurangi konsumsi energi WSN, salah satunya adalah Protokol Power Efficient Gathering in Sensor Information System (PEGASIS). Dalam makalah ini, dilakukan pengukuran kinerja protokol routing PEGASIS dengan menggunakan Network Simulator 2 (NS-2). Indikator kinerja yang dievaluasi adalah konsumsi energi, lifetime dan throughput. Skenario simulasi yang digunakan adalah variasi jumlah node. Dari serangkaian simulasi yang dilakukan terlihat bahwa jumlah node mempengaruhi tingkat efisiensi energi yang dikonsumsi, lifetime dan throughput node sensor.
EVALUASI KINERJA ZONE ROUTING PROTOCOL PADA MOBILE AD-HOC NETWORK Jeffrey Anthoni; Veronica Windha Mahyastuty
Jurnal Elektro Vol 7 No 1 (2014): Jurnal Elektro Unika Atma Jaya
Publisher : Prodi Teknik Elektro, Fakultas Teknik Unika Atma Jaya Jakarta

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Abstract

Mobile Ad hoc Network (MANET) merupakan jaringan wireless yang bersifat dinamis, karena setiap node bergerak secara bebas, sehingga topologi jaringan seringkali berubah tanpa dapat diprediksi. Kondisi topologi yang berubah-ubah akan mempengaruhi kinerja protokol routing pada MANET. Salah satu permasalahan terbesar dalam MANET adalah bagaimana membuat protokol routing yang efektif pada kondisi topologi apapun. Salah satu solusi untuk mengatasi masalah routing pada MANET dapat digunakan protokol routing hybrid yang merupakan gabungan antara protokol routing proactive dan reactive. Salah satu protokol routing hybrid adalah Zone Routing Protocol (ZRP). ZRP terdiri dari empat subprotokol yaitu Intrazone Routing Protocol (IARP) yang bekerja sama dengan Neighbour Discovery Protocol (NDP) yang  mengontrol node tetangga dalam zona lokal dan Interzone Routing Protocol (IERP) yang bekerja sama dengan Bordercast Resolution Protocol (BRP) dalam melakukan pencarian rute menuju node yang tidak berada pada node lokal. Dalam penelitian ini, dilakukan evaluasi terhadap kinerja dari protokol routing ZRP pada MANET dengan pendekatan simulasi menggunakan Network Simulator 2 (NS-2). Skenario yang digunakan dalam simulasi adalah membuat skenario jalur putus, variasi jumlah node, jumlah koneksi, dan kecepatan node sumber. Indikator  kinerja yang dievaluasi adalah waktu tempuh satu paket dan throughput pada koneksi utama. Dari serangkaian simulasi yang dilakukan, diperoleh hasil yang menunjukkan bahwa IERP akan mencari jalur satu kali dan bila jalur utama putus, dan ada jalur alternatif, maka jalur alternatif yang akan digunakan. Sedangkan untuk rute yang berada di dalam zona routing dapat dengan cepat tersedia karena IARP melakukan pembaruan rute secara periodic. Penambahan jumlah node dan koneksi mengakibatkan waktu tempuh satu paket menjadi bertambah dan throughput menjadi berkurang. Kata kunci:   MANET, protokol routing ZRP, NS-2, waktu tempuh satu paket, throughput
Pendampingan Kegiatan Pemasaran Produk Kemasan Berbahan Lele Segar dan Lele Asap Indriati, Kumala; Mahyastuty, Veronica Windha; Mulyadi, Melisa; Silalahi, Agustinus
Jurnal Pengabdian Masyarakat Charitas Vol. 3 No. 01 (2023): Jurnal Pengabdian Masyarakat Charitas Juni 2023
Publisher : Program Studi Teknik Industri, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/charitas.v3i01.4360

Abstract

In accordance with the theme of the 77th Independence Day of the Republic of Indonesia "Recover Faster and Rise More Strong", it is necessary to revive the community's economy. Organization KNPI (Indonesian National Youth Committee) with youth organizations others in the Cisauk sub-district are trying to encourage the revival of the economy society, especially MSMEs driven by organizations youth or by citizen units. The activity held is a bazaar which is entitled “Cisauk Youth Fest”. For the implementation of this activity the Faculty Atma Jaya Unika Engineering partners with BUMDES to provide assistance in preparation for BUMDES participation in the "Cisauk Youth Fest" bazaar, which was carried out at Gate 3 of the BSD Intermodal Modern Market. This activity is in collaboration with the the manager of the BSD Cisauk Intermodal Modern Market for the provision of a place.
PENGARUH DELAY PADA MODUL WIFI 802.11B/G/N ESP 32 DI RENTANG FREKUENSI 2.4 GHZ TERHADAP SMART CONTROL SOLAR HOME SYSTEM Hadikusuma, Ridwan Satrio; Mahyastuty, Veronica Windha; Siregar, Marsul; Hardine, Linkha
Transmisi: Jurnal Ilmiah Teknik Elektro Vol 25, No 4 Oktober (2023): TRANSMISI: Jurnal Ilmiah Teknik Elektro
Publisher : Departemen Teknik Elektro, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/transmisi.25.4.149-155

Abstract

Di Indonesia, PLN adalah penyedia utama listrik rumah tangga, individu, dan industri. Namun, karena pasokan listrik PLN tidak selalu stabil, pembangkit cadangan diperlukan. Karena mereka adalah sumber energi terbarukan dan ramah lingkungan, pembangkit listrik tenaga surya (PLTS) menggunakan energi matahari sebagai sumbernya. Namun, pasokan PLTS tergantung pada cuaca. Untuk mengatasi masalah ini, PLTS dapat dirancang sebagai Pembangkit Listrik Hibrid (PLTH), yang menggabungkan sumber PLN dan pengaturan beban. Studi ini mengembangkan sistem kontrol pintar otomatis dan manual yang menggunakan Automatic Transfer Switch (ATS). Sistem ini menggunakan ESP 32 dan memiliki mikroprosessor dengan modul WiFi 802.11b/g/n ESP 32 di Rentang Frekuensi 2.4 GHz. Studi rumah tangga menunjukkan bahwa kontrol pintar berfungsi dengan baik dalam simulasi dan pengujian. Meskipun ada waktu start-up inverter, delay rata-rata PLN-SHS adalah 1835 ms dan SHS-PLN adalah 2695 ms dalam mode otomatis dan 937,5 ms dalam mode manual dengan kontrol Thinger io. Dalam 12 pengujian, delay rata-rata kurang dari 2 s. Hasil menunjukkan bahwa jarak tidak memengaruhi delay, namun, kecepatan internet ESP 32 dan pengguna memengaruhi delay.
The Effect of the Number of Nodes on Data Communication Performance in Nomad Clusters Using the Gossip Protocol Hadikusuma, Ridwan Satrio; Mahyastuty, Veronica Windha; Lukas; Epril Moh Rizaludin
JOIN (Jurnal Online Informatika) Vol 9 No 2 (2024)
Publisher : Department of Informatics, UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/join.v9i2.1327

Abstract

This research aims to understand the effect of the number of nodes on the performance of data communication in Nomad clusters using the gossip protocol. Through a series of tests, it can be concluded that data communication performance is greatly affected by the number of nodes in the cluster. Tests were conducted using two clusters, where one cluster consists of three nodes. The results show that when using a cluster with three nodes, no packet loss occurs in all data transmissions performed, indicating a reliable communication system. The average latency in one data communication cycle varied in each test, but generally remained within the acceptable range of below 100ms based on data communication quality of service parameters. CPU and disc usage remained relatively stable throughout the experiment. Although there were slight differences in throughput between clusters, the throughput generally remained above 100 Mbps, which is still in the good category according to the research parameters. These results show the importance of taking into account the number of nodes in the cluster in designing and managing data communication systems in a Nomad cluster environment with the gossip protocol.
Predicting Stock Market Trends Based on Moving Average Using LSTM Algorithm Permana, Rizki Surya; Mahyastuty, Veronica Windha; Budiyanta, Nova Eka; Bachri, Karel Octavianus; Kartawidjaja, Maria Angela
CogITo Smart Journal Vol. 10 No. 2 (2024): Cogito Smart Journal
Publisher : Fakultas Ilmu Komputer, Universitas Klabat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31154/cogito.v10i2.648.486-495

Abstract

Prediction of the stock market is highly needed to assist traders in making decisions. Many methods are used by traders to predict this such as technical analysis and moving averages. Moving averages predict stock trends based on the past data of the stock. The disadvantage of using a moving average analysis is the delay in crossover signals. As a solution, a deep learning technique known as LSTM is applied to the moving average strategy in this paper. In this research, the BBCA stock dataset spanning from 2010 to 2018 was utilized. The data was segmented into two parts: 2010-2017 for training data and 2018 for testing data. The training process employed Long Short-Term Memory (LSTM) networks, with the subsequent results being combined with moving average crossover techniques. Validation results indicate that BBCA shows a relatively minimal error. BBCA's average MAPE is 1.1%, and its RMSE is 65.402, classifying it within the "Highly Accurate Forecasting" category. Various combinations of moving average crossovers were tested during model training, with the combination of SMA05 and SMA50 for BBCA yielding the highest profit potential. Stocks that exhibit a downward trend are more likely to incur substantial losses. The model can predict the reversal of trends by predicting the trading signal given by the moving averages.
Perancangan Sistem Filtrasi Air Berbasis Virtual Programmable Logic Controller (PLC) dan Human-Machine Interface (HMI) Bachri, Karel Octavianus; Karangga, Yusaphat Phosa; Mahyastuty, Veronica Windha; Sereati, Catherine Olivia; Mulyadi, Melisa; Octaviani, Sandra
Cylinder : Jurnal Ilmiah Teknik Mesin Vol 10 No 2 (2024): OKTOBER 2024
Publisher : Department of Mechanical Engineering Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/cylinder.v10i2.5607

Abstract

In the industrial environment, automation technology is becoming increasingly vital for boosting process efficiency and dependability. Water filtration is one of the most essential industrial uses. This study aims to evaluate the performance of PLC virtual control systems in regulating and managing water filtration processes, and HMI provides an intuitive graphical interface for operators to monitor and control processes. The simulation in this study employs the integrated Virtual PLC Codesys Virtual Win V3 and HMI Aveva Intouch software. Turbidity sensors are used to confirm the clarity of water after it has been filtered. The results of this study demonstrate that using the virtual control system, PLC and HMI, can facilitate the operation and monitoring of water filtration.
Real-Time Telemetry Based Monitoring System for Energy Efficiency Evaluation of Scheduled Dimming in Office Corridor Lighting Muhammad Risqi Nuryana; Veronica Windha Mahyastuty; Ridwan Satrio Hadikusuma
Jurnal Sistem Cerdas Vol. 9 No. 1 (2026)
Publisher : APIC

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37396/jsc.v9i1.640

Abstract

In many office buildings, corridor lighting systems are commonly operated at full brightness continuously, regardless of occupancy conditions, resulting in unnecessary energy consumption. This study proposes and evaluates a real-time telemetry-based monitoring system to assess the energy efficiency of a scheduled dimming strategy for office corridor lighting. The developed system integrates dimmable LED luminaires with a telemetry unit capable of transmitting real-time illuminance and energy consumption data for monitoring and analysis. A time-based dimming schedule of 25%, 50%, and 75% output levels was implemented in an office corridor environment. Illuminance measurements were collected at five different points along the corridor, while electrical energy consumption was recorded continuously over a seven-day observation period through the telemetry monitoring platform. The results indicate that even at the lowest dimming level (25%), the corridor maintained an average illuminance of 100 lux, which remained within acceptable lighting standards for pedestrian circulation. Telemetry data further demonstrated that the scheduled dimming strategy reduced weekly energy consumption by approximately 64% compared to continuous full operation (0.711 kWh reduced to 0.253 kWh). These findings confirm that real-time telemetry monitoring enables accurate performance evaluation of lighting control strategies while ensuring compliance with visual comfort requirements. The study highlights the potential of telemetry-based lighting monitoring systems as an effective approach to optimize energy use, minimize over-lighting, and support data-driven energy management in office buildings.
Protokol Routing Power Efficient Gathering in Sensor Information Systems pada Wireless Sensor Network Kevin Anggana; Veronica Windha Mahyastuty
Jurnal Elektro Vol 8 No 1 (2015): Jurnal Elektro Unika Atma Jaya
Publisher : Program Studi Teknik Elektro, Fakultas Biosains, Teknologi, dan Inovasi, Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penggunaan wireless sensor network (WSN) saat ini telah dipertimbangkan untuk memenuhi kebutuhan komunikasi antara lain di bidang industri, keamanan, medis, serta pemantauan cuaca dan lingkungan. WSN merupakan jaringan yang terdiri atas banyak node sensor yang terdistribusi pada suatu wilayah, dan digunakan untuk memantau dan mengumpulkan informasi mengenai fenomena tertentu pada lingkungan fisik.  Sensor-sensor kemudian meneruskan informasi tersebut ke sebuah base station, agar informasi dapat diakses oleh pengguna. Kendala pada penggunaan WSN adalah pada keterbatasan energi yang dimiliki setiap node sensor. Dengan demikian inefisiensi energi pada seluruh lapisan protokol node sensor perlu ditekan.  Oleh karena itu, dibutuhkan sebuah protokol routing pada teknologi WSN yang dapat mengurangi konsumsi energi WSN, salah satunya adalah Protokol Power Efficient Gathering in Sensor Information System (PEGASIS). Dalam makalah ini, dilakukan pengukuran kinerja protokol routing PEGASIS dengan menggunakan Network Simulator 2 (NS-2). Indikator kinerja yang dievaluasi adalah konsumsi energi, lifetime dan throughput. Skenario simulasi yang digunakan adalah variasi jumlah node. Dari serangkaian simulasi yang dilakukan terlihat bahwa jumlah node mempengaruhi tingkat efisiensi energi yang dikonsumsi, lifetime dan throughput node sensor.
Co-Authors A. Adya Pramudita Agustinus Silalahi Catherine Olivia Sereati Epril Moh Rizaludin Hadikusuma, Ridwan Satrio Hardine, Linkha Jeffrey Anthoni Karangga, Yusaphat Phosa Karel Octavianus Bachri Kevin Anggana Kumala Indriati Lukas Maria Angela Kartawidjaja Marsul Siregar Melisa Mulyadi Muhammad Risqi Nuryana Nova Eka Budiyanta Ridwan Satrio Hadikusuma Rizki Surya Permana Sandra Octaviani B. Widiarto